#!/usr/env python

"""
small demo of modules
"""
def numop1(x,y,multiplier=1.0,greetings="Thank you for your inquiry."):
    """ 
    numop1 -- this does a simple operation on two numbers.
              We expect x,y are numbers and return x + y times the multiplier.
              multiplier is also a number (a float is preferred) and is 
              optional. It defaults to 1.0.
              You can also specify a small greeting as a string.
    """ 
    if greetings is not None:
       print greetings
    return (x + y)*multiplier